Use After Free Vulnerability in LibTIFF Affecting Multiple Versions
CVE-2025-8176

4.8MEDIUM

Key Information:

Vendor

LibTIFF

Status
Libtiff
Vendor
CVE Published:
26 July 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-8176?

A vulnerability exists in LibTIFF, specifically within the get_histogram function of the tiffmedian.c file. This issue leads to a use after free scenario which can potentially be exploited locally. An attack vector has been publicly disclosed, making it imperative for users to patch their systems promptly. The vulnerability affects all versions of LibTIFF up to 4.7.0, and a patch has been developed to address this critical issue. Users are strongly advised to implement the latest patch, identified by commit fe10872e53efba9cc36c66ac4ab3b41a839d5172, to ensure their software remains secure.

Affected Version(s)

LibTIFF 4.0

LibTIFF 4.1

LibTIFF 4.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-8176 - Proof of Concept

References

https://vuldb.com/?id.317590
vdb-entrytechnical-description
https://vuldb.com/?ctiid.317590
signaturepermissions-required
https://vuldb.com/?submit.621796
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

arthurx (VulDB User)
.
CVE-2025-8176 : Use After Free Vulnerability in LibTIFF Affecting Multiple Versions